Valve.



F. Y. 111011013, VALVE. APPLICATION FIL ED JULY 6,1915.

1,204,898. Patented Nov. 14, 1916.

PATENT OFFICE.

FREDRICK Y. NICHOLS," F CHIGAGO ILLINOIS.

VALVE.

Specification of Letters Patent. fatentgd No 14, 1916 Application filed July 6, 1915. Serial No. 38,122.

To all whom it may concern:

Be it known that I, FREDRIGK I. NICH- ons, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Valves, of which the following is a specification. 1

My invention relates to valves and has especial reference to pump valves, of thecheck valvetype.

Some of the objects of my invention are to provide a simple, cheap-to-construct valve, which has minimum obstruction in the water way path, the valve body for which will not cramp or bind in the other parts of the structure and in which said seat-carrying structure is locked in position in the deck of the pump by the spider which also afi'ords an abutment for the helical valve spring.

Other and further objects of my invention will become readily apparent, to persons skilled in the art, from a consideration of the following description when taken in conjunction with the drawings, wherein Figure 1 is a central section of the valve showing parts of the pump deck. Fig. 2 is a plan view, showing parts broken away to expose other parts, below the top of the valve.

In both. views the same reference characters are employed to indicate similar parts. When my valve is used for a pump, the seat carrying structure is secured to the deck 5 by screw threaded engagementf The part 6 is a'ring having a screw threaded exterior surface 7 adapted to engage a similar surface in the deck 5. The upper portion of the structure, or ring 6, is provided with a vertically projecting annular valve seat 8, preferably somewhat narrower than the ring 6. The ring 6 may be screwed part way into the deck 5, by use of a spanner or other suitable tool, engaging the spanner depressions 9- 9 in the inside of the ring 6.

The Valve body 10, consists of a disk 11, having downwardly projecting flanges 12 and 13 between which is an annular groove to receive the valve packing ring 14. In the particular embodiment illustratedthe packing ring 14: is somewhat wider than the valve seat 8 so that the seat will always engage the ring. The valve body is provided with a plurality of downwardly projecting brackets, or arms 15,of which there may be any suitable number, three being shown in the particular exemplification. These arms en- Immediately above and concentricwith the packing ring 14, in the valve body 10, is a concentric spring seating groove 16, to receive the helical spring 17, and by this means pressure on the valve body is exerted immediately over the packing ring, and valve seat, which feature of itself will contribute, to a large extent, to prevent clamping of the valve body, in its vertical movement.

ring or disk 18 serves as an abutment for .the' spring 17. A disk is shown in the particular embodiment, but a ring of proper width joining the arms will answer as well, in which eveht'the interior surface of the disk 18 may be cut away to provide aring suliiciently broad to include a spring seat groove 19 to receive the upper end of the spring 17, the groove 19 being vertically in alinement and concentric with the groove 16 in the valve body. The ring or disk 18 isv provided with a p'lurality of legs or arms 1 ery whereby to turn the ring into threaded engagement with the ring 6 of the valve seat structure.

When the valve seat body, or ring 6, is part way screwed into the deck 5, by use of a suitable tool engaging the depressions 9-9 ,in the inner surface thereof, the valve body 10 is then placed in position above the valve seat structure and then the spider comprising the ring 18, legs 20 and the screw threaded ring 21 is placed over the spring 17 which isseated in the spring seats aforesaid, and is screwed over the ring 6 by use of a spanner engaging the depressions 23-23, thereby the ring of the spider serves as a check nut to hold the ring 6 in its place. By placing the depressions 99 on the inside of the valve seat body 6 the latter may be screwed into position, or out of contact with the deck 5, without liability of marring or disfiguring the valve seat 8. The valve seat body 6 being thicker than the deck it may be screwed into the deck, as far as desirable, and held in any selected position, by

means of the encompassing ring 21, of the spider, serving as a check nut.

Having described my invention what I claim as new and desire to secure by Letters- Patent of the United States is A valve for insertion in a pump deck comprising an exteriorily screw threaded shoulderless open ring, having a valve seat on one edge thereof; a valve body carrying a packing ring and having a spring seat immediately thereabove; a plurality of guiding brackets projecting therefrom into said open ring; a spider comprising a screw threaded ring for engagement with the threads of the said valve seat ring and adapted to clamp immediately above said packing ring.

In testimony whereof I hereunto set my hand in the presence of two subscribing witnesses.

' FREDRIGK Y. NICHOLS.

In the presence of- Fomin BAIN, Y MARY F. ALLEN. 

